. B2B . \ . . , , , 90% . , : (8 ) ( , " , .." ) ( ) ( 20 ) \ ( ) ( ) ( 90% ) ( , ) , , , , , . " -" "-" " - " " - " .. , , , . , , . , 30 -70%. , 30%. 300% , , . 0 0 0 0 1353 ? 12345 E-mail , ?